Take control of your bookmarks like you never controlled them before!"This extensions allows you to access your bookmarks by clicking on the left side your screen. You can edit, delete or rearrange your bookmarks by drag&drop and view some information about them by just clicking them with your left mouse key. You can check your bookmarks for updated or broken urls, too."

Tons of more functionality than regular bookmarks (opera://bookmarks) manager.

When I created and new profile I also backed up ext related folders. It was smooth though some ext settings had mishaps so it's better to go trough them just to be sure. Profile folder got thinner altogether like 90MB which is some 40MB less than prior reinstall. Slowness that some sites had I'm not sure could that been ext related ~ of ext's removed - but some local data left behind... dunno.

Take control of your bookmarks like you never controlled them before!"This extensions allows you to access your bookmarks by clicking on the left side your screen. You can edit, delete or rearrange your bookmarks by drag&drop and view some information about them by just clicking them with your left mouse key. You can check your bookmarks for updated or broken urls, too."

Tons of more functionality than regular bookmarks (opera://bookmarks) manager.

it lets you create collection folders in youtube, where you can sort your subscriptions into,
making your subscriptions menu neat and organized. also gives option to hide the subscriptions all together so you only have the collection folders. can even upload your own folder thumbnails/images.